Chinese Crankshaft - GY6 50cc Engine
Chinese 50cc crankshaft fits several makes & models. Please use the pictures and measurements to best match your crank.
Crank shaft details:
- Over Length: 24cm [9.45"]
- Bearing size/model: 20 X 47 X 14 
- Bearing size/model: 17 X 42 X 12 
- 16 tooth oil pump drive gear
- Sprockets: 17 teeth each
- Spline count on end of shaft: 26 spline
- Thread size on tapered end: M10 x 1.25
- Thread size on straight end: M12 x 1.25
Known to fit GY6-50 engines.
Do you need your crankshaft fast? If you order before 3:00 pm CST, Monday thru Friday, your order goes out the same day. Free shipping on orders in USA over $100. Excludes Hawaii and Alaska. Buy now!
- magneto puller
- 72cc cylinder
It fit well it is working fine now and I also replace the piston and the head and the camshaft I did have to buy a magneto puller that works well to
I was worried there’d be a difference between my original crankshaft and this one but no. It fit perfectly. No issues.
Works fine ...fast shipping
Installed easily using profane torch and duster. Couple hundred miles so far. Hard to start, may be ever so slightly longer stroke than stock, runs faster than stock crank. Mid 40s mph gps with 72cc cylinder.
Haven't gotten to installing the part yet but shipping was quick packaging was great.and I'll get back to you on it's performance once installed.